Psychonauts is free on the Humble Store for a limited time

The Humble Store is giving away Psychonauts for free over the next two days, with the giveaway closing at 1pm ET on Saturday. All customers who pick up the game receive a Steam key for PC, Mac, and Linux, as well as a DRM-free copy for all three systems that can be downloaded at any time. No additional purchases are necessary to receive the game.

Psychonauts was originally released by Double Fine in 2005 for PC, Xbox, and PlayStation 2. The third-person action-adventure platformer focuses on Raz, a psychic boy tasked with saving his fellow psychics from being abducted from a government summer training camp. A sequel to the game, Psychonauts 2, is currently in production after a successful fundraiser on Fig.

This isn't the Humble Store's first giveaway this month. Earlier, Telltale's The Walking Dead: Season 1 was available for free on the store, along with discounts on Telltale games.